CVE-2026-64727
Received Received - Intake

Type Confusion in macOS Tahoe Leading to System Crash

Vulnerability report for CVE-2026-64727, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description

A type confusion issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.6, tvOS 26.6. An app may be able to cause unexpected system termination.

CVSS Scores

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Meta Information

Published
2026-07-27
Last Modified
2026-07-27
Generated
2026-07-28
AI Q&A
2026-07-28
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
apple macos_tahoe to 26.6 (inc)
apple tvos to 26.6 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This is a type confusion vulnerability caused by improper memory handling. It allows an application to trigger unexpected system termination by exploiting how the system processes data types.

Impact Analysis

An attacker could potentially crash your device by exploiting this flaw in an app. This may lead to data loss or disrupt normal device operations if the app is malicious or compromised.

Mitigation Strategies

Update macOS Tahoe to version 26.6 and tvOS to version 26.6 to address the type confusion issue. Remove any untrusted apps that may trigger the vulnerability.

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